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1187000226 = 23265944457
BaseRepresentation
bin100011011000000…
…0010111110100010
310001201112212012100
41012300002332202
54412333001401
6313441311230
741262223026
oct10660027642
93051485170
101187000226
1155a037925
12291635516
1315bbc23c9
14b3908386
156e31db86
hex46c02fa2

1187000226 has 12 divisors (see below), whose sum is σ = 2571833862. Its totient is φ = 395666736.

The previous prime is 1187000183. The next prime is 1187000237. The reversal of 1187000226 is 6220007811.

It can be written as a sum of positive squares in only one way, i.e., 1014104025 + 172896201 = 31845^2 + 13149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1187000226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32972211 + ... + 32972246.

Almost surely, 21187000226 is an apocalyptic number.

1187000226 is an abundant number, since it is smaller than the sum of its proper divisors (1384833636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1187000226 is a wasteful number, since it uses less digits than its factorization.

1187000226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65944465 (or 65944462 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1187000226 is about 34452.8696337475. The cubic root of 1187000226 is about 1058.8073170078.

The spelling of 1187000226 in words is "one billion, one hundred eighty-seven million, two hundred twenty-six", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 65944457 131888914 197833371 395666742 593500113 1187000226